Leah Cohen
London, England
Oct 4, 2026

A stablecoin can promise to track sterling without being equivalent to sterling in a central bank’s operations. That distinction would become critical if the Bank of England considered accepting a systemic stablecoin as collateral: faster transfers would be useful, but the decisive questions would concern redemption, legal rights and what happens when the issuer fails.

The supplied account of a Bank of England and Financial Conduct Authority feedback statement says such an assessment is planned. It should not, however, be read as evidence that stablecoins have been approved for the Bank’s Sterling Monetary Framework, or that approval is inevitable.

A source limitation matters here. The account identifies the document as FS26/1, dated 14 September 2026, but supplies a Bank of England URL with a May 2026 date. The original feedback statement has not been verified for this article. Its reported commitments, response count and publication details therefore remain unconfirmed.

The underlying policy question is nevertheless substantive. What would it take for a privately issued digital token to become an asset against which the central bank is willing to lend?

Collateral eligibility is not access to central-bank money

The Sterling Monetary Framework sets out the Bank’s facilities for providing sterling liquidity to eligible counterparties. In secured lending operations, collateral protects the Bank if a borrower cannot repay.

Two decisions are involved: which institutions may use a facility, and which assets those institutions may pledge. Making a stablecoin eligible collateral would not, by itself, give its issuer access to central-bank borrowing. Nor would it turn the token into central-bank money or constitute a general guarantee of its value.

The term systemic is also easy to misread. It concerns the potential consequences of disruption to a payment system, not an assurance that every claim within that system is risk-free. A stablecoin could be important enough to require close oversight while still presenting risks that make it unsuitable collateral.

A sterling peg is only the starting point

The first question would be what the Bank actually receives when a token is pledged.

A stablecoin generally gives its holder a claim governed by the issuer’s contractual and legal arrangements. That is different from holding the assets backing the token directly. Even if reserves consist of cash and government securities, the holder’s ability to recover value depends on redemption rights, reserve protection and the treatment of those assets in insolvency.

The Bank would need to establish whether it could take control of the token after a counterparty default, redeem it promptly and receive usable sterling. Any restrictions on who may redeem, processing delays or dependence on an intermediary would matter.

Backing quality would remain important, but so would backing availability. Assets described as liquid may be less useful if they are encumbered, inaccessible or difficult to realise during a simultaneous rush for redemptions.

There is also a concentration problem. If the borrower were closely connected to the stablecoin issuer, the borrower’s failure and a deterioration in the token’s value could occur together. Collateral should protect the lender against default, not reproduce the same exposure in another form.

Tokenisation can improve movement, not eliminate risk

The strongest operational case for tokenised collateral is that it could reduce delays in transferring, allocating and releasing assets. More efficient movement could help institutions meet margin calls and use their available collateral more effectively.

But a ledger transfer is not the same as liquidity. A token may move around the clock while redemption depends on banking hours, an issuer’s systems or access to particular settlement arrangements.

The distinction becomes sharper under stress. If the Bank had to realise collateral, it would need either a dependable market or an enforceable route to redemption. Continuous trading alone would not establish either.

That would feed into valuation, eligibility limits and haircuts. A haircut means the Bank lends less than the assessed value of the pledged asset, leaving a buffer against losses. A token’s intended one-for-one exchange rate would not automatically justify treating it at par. Any assessment would need to consider price reliability, market depth, redemption delays and losses under adverse conditions.

Legal control must survive operational failure

Tokenised collateral would also require arrangements for custody, authorised transfers and enforcement that remain effective when something goes wrong.

Who controls the private keys? Can the issuer freeze a pledged token? What happens if a custodian fails, a ledger stops operating or a transfer is disputed? Does the applicable law recognise the Bank’s security interest, and can it be enforced against competing claims?

These are not peripheral implementation questions. They determine whether collateral that appears available on a screen can actually protect the central bank.

Some risks would apply to tokenised conventional securities as well as stablecoins. Others would arise specifically from the stablecoin issuer’s redemption promise and reserve structure.

Why a digital gilt is a different proposition

The supplied account also references the Digital Gilt Instrument, or DIGIT. A digital gilt would provide a useful comparison because it separates the technology question from much of the issuer-risk question.

A tokenised gilt represents government debt. A stablecoin generally represents a private issuer’s obligation to redeem. Both may use token-based infrastructure, but they are not interchangeable economic claims.

Work on a digital gilt could inform custody, settlement and legal arrangements for other tokenised assets. It could not, on its own, establish that a stablecoin’s credit and liquidity risks were acceptable.

Similarly, any rules allowing central counterparties to accept tokenised collateral would be distinct from the Bank’s own eligibility decisions. Clearing houses and central banks have different exposures, liquidity needs and default-management responsibilities.

The test is institutional, not just technical

For stablecoin firms, the significance of a possible assessment would be the standard it sets, rather than an immediate route to central-bank liquidity.

Credible redemption, protected reserves, enforceable claims and resilient operational arrangements would have to work together. Faster settlement would strengthen the case only if those foundations were sound.

A systemic stablecoin could conceivably meet a central bank’s collateral requirements. But neither its scale nor its sterling label would settle the question. The relevant test is whether the Bank could recover dependable value when the borrower, the issuer or the market is under pressure. Until the underlying policy document is verified and any eligibility decision is published, that remains a possibility—not an approved change to the Sterling Monetary Framework.